July 3, 2024 Todd W. Fister Chief Financial Officer Owens Corning One Owens Corning Parkway Toledo, Ohio 43659 Re: Owens Corning Registration Statement on Form S-4 Filed on June 28, 2024 File No. 333-280549 Dear Todd W. Fister: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Jenny O'Shanick at 202-551-8005 with any questions. Sincerely, Division of Corporation Finance Office of Manufacturing cc: Michael J. Solecki